520007061 has 24 divisors (see below), whose sum is σ = 820225440. Its totient is φ = 292105632.

The previous prime is 520007057. The next prime is 520007083. The reversal of 520007061 is 160700025.

It is not a de Polignac number, because 520007061 - 2² = 520007057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520007461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21306 + ... + 38651.

It is an arithmetic number, because the mean of its divisors is an integer number (34176060).

Almost surely, 2^520007061 is an apocalyptic number.

It is an amenable number.

520007061 is a deficient number, since it is larger than the sum of its proper divisors (300218379).

520007061 is a wasteful number, since it uses less digits than its factorization.

520007061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60033 (or 60026 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 520007061 is about 22803.6633241240. The cubic root of 520007061 is about 804.1487914891.

Adding to 520007061 its reverse (160700025), we get a palindrome (680707086).

The spelling of 520007061 in words is "five hundred twenty million, seven thousand, sixty-one".